Award-Winning Protection 2026

Award-Winning Free Antivirus & Online Security

Protect your devices with Avast's AI-powered security suite. Real-time threat detection, scam blocking, VPN privacy, and performance tools — all in one app.

435M+Users Protected
223Attacks Blocked/sec
30+Years of Security
Avast security protection dashboard
6.8M+ Threats Blocked Daily
AV-Comparatives Top-Rated 2026
SE Labs 100% Accuracy
Available in 40+ Countries
30 Years of Cybersecurity

Everything You Need to Stay Safe Online

Avast combines antivirus, VPN, scam protection, and performance tools into one powerful, easy-to-use app.

AI-Powered Scam Protection

Avast Assistant uses artificial intelligence to evaluate suspicious messages, emails, and websites — stopping scams before they reach you.

Real-Time Threat Detection

File Shield scans every file as it's accessed, while Behavior Shield monitors app behavior to catch zero-day threats in real time.

Network Inspector

Automatically checks your Wi-Fi network for vulnerabilities, weak passwords, and unauthorized devices connecting to your router.

Ransomware Shield

Protects your most important files and photos from ransomware encryption attacks, keeping your data safe even from new threats.

Mail Shield

Scans incoming and outgoing email attachments for malware, phishing links, and malicious content before they cause harm.

Hack Alerts

Monitors the dark web for your email address and alerts you instantly when your passwords appear in data breaches.

Stop Threats Before They Start

Avast's multi-layered security engine scans billions of threat samples every day to keep your protection current against the latest malware, ransomware, and phishing attacks.

  • Six shields working simultaneously to block threats
  • Smart Scan detects vulnerabilities in hidden locations
  • Banking Mode isolates financial transactions from spyware
  • Phishing detection with 95% accuracy rate
  • Automatic updates keep protection fresh 24/7
Get Protected Free
Advanced cybersecurity protection

Trusted by Hundreds of Millions

435M+Active users worldwide
223Attacks blocked per second
6.8M+Phishing threats blocked daily
Privacy and VPN protection

More Than Just Antivirus

Avast One goes beyond virus protection to give you a complete digital wellness solution. Secure your privacy, speed up your device, and browse anonymously.

  • SecureLine VPN encrypts your connection on public Wi-Fi
  • AntiTrack blocks online trackers and ads
  • Cleanup Premium recovers 235 MB of disk space daily
  • Secure Browser keeps financial activity private
  • Driver Updater fixes outdated drivers automatically
Explore All Features

Cybersecurity for Every Threat

Network security monitoring Server room data protection Privacy and secure browsing

What Our Users Say

★★★★★

"Avast has been protecting my family's devices for years. The AI scam detection caught a phishing attempt that my email provider completely missed. Highly recommend."

Michael T.
United States
★★★★★

"I switched from a paid competitor to Avast Free and I'm honestly getting better protection. The real-time scanning is fast and doesn't slow down my PC at all."

Sarah L.
United Kingdom
★★★★★

"The banking mode is a game-changer. I do all my online banking in it and feel completely secure. Avast One is well worth the premium price for full protection."

David K.
Canada

Frequently Asked Questions

Yes, Avast Free Antivirus is completely free with no time limit. It includes real-time scanning, Wi-Fi inspector, and scam protection at no cost. Premium plans add VPN, banking mode, and other advanced features.
Avast is designed to be lightweight and efficient. Independent tests by AV-Comparatives consistently rate Avast as one of the lowest-impact security solutions for system performance.
Avast is available for Windows (7, 8, 10, 11), macOS (10.14 and later), Android, and iOS. The Avast One app provides unified protection across all your devices with a single subscription.
Avast Assistant analyzes messages, emails, and websites using AI models trained on billions of threat samples. It identifies patterns common to scams and phishing attempts and warns you before you take action.
Yes. Avast's Ransomware Shield monitors protected folders and blocks unauthorized access to your files. Behavior Shield also detects ransomware-like behavior from any app and stops it before your files are encrypted.

Start Protecting Your Digital Life Today

Join 435 million users who trust Avast to keep their devices safe. Free forever.

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